Ionia Weather Forecast

    • 61
    • 83

    Partly Sunny

    • 65
    • 86

    Chance Rain Showers

    • 60
    • 80

    Rain Showers

    • 56
    • 76

    Slight Chance Thunderstorms

    • 58
    • 77

    Mostly Sunny

    • 63
    • 83

    Mostly Sunny

Today 4 Jun Ontario

Mostly sunny. Highs Ranging from the upper 70s on the Hilltops to the lower 80s across the lower Elevations. West Winds 10 Mph or less.

Tonight 4 Jun Ontario

Mainly clear in the Evening, then becoming partly cloudy. Lows around 60. West Winds 5 to 10 Mph, becoming light.

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  • Temperature Real-Time

Ionia Temperature Statistics

June Temperature

Rochester, Greater Rochester International Airport (15.5 miles)

  • Lowest 2 June, 2026

    44.1 °F

  • Average June

    59.4 °F

  • Highest 2 June, 2026

    75 °F

Climate (2021–Present)

Rochester, Greater Rochester International Airport (15.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.5 °F
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